Ch.5 Membrane Transport

what has greater concentration? water blood cells

blood cells

In which type of solution would you place red blood cells if you don't want to cause a net movement of water?

isotonic solution

Why is the plasma membrane called a 'mosaic'?

it contains a variety of different molecules embedded within the phospholipids such as proteins and other lipids.

Which molecules can pass through the plasma membrane without any assistance, using simple diffusion?

small non-polar molecules small fats gases

Which molecules require assistance from either a carrier protein or a channel protein in order to cross the membrane?

small polar molecules, large polar molecules, ions

Why is the plasma membrane called a 'fluid'?

the component of the membrane are not permanently attached to each other and can move freely within each layer.

The main categories of cell transport are either active transport or passive transport. Which two statements are true - active transport doesn't require energy -passive transport requires energy - active transport requires energy -passive transport doesn't require energy.

- active transport requires energy -passive transport doesn't require energy.